NISSAN TIIDA 2007 Service Repair Manual

HAC-48
< COMPONENT DIAGNOSIS >[MANUAL AIR CONDITIONER]
PTC HEATER CONTROL SYSTEM
Check continuity between PTC relay-2 harness connector E62 termi-
nal 1 and ground.
Is the inspection result normal
YES >> GO TO 12.
NO >> GO TO 11.
11 .CHECK CIRCUIT CONTINUITY BETWEEN PTC RELAY-2 AND BCM
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check continuity between BCM harness connector M19 (B) ter-
minal 52 and PTC relay-1 harness connector E62 (A) terminal 1.
Is the inspection result normal
YES >> Replace BCM. Refer to XXXX.
NO >> Repair harness or connector.
12.CHECK PTC RELAY-3 GROUND CIRCUIT
Check continuity between PTC relay-3 harness connector E63 termi-
nal 1 and ground.
Is the inspection result normal
YES >> GO TO 14.
NO >> GO TO 13.
13.CHECK CIRCUIT CONTINUITY BETWEEN PTC RELAY-3 AND BCM
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check continuity between BCM harness connector M19 (B) ter-
minal 51 and PTC relay-3 harness connector E63 (A) terminal 1.
Is the inspection result normal
YES >> GO TO 14.
NO >> Repair harness or connector.
14.CHECK VOLTAGE BETWEEN AMBIENT TEMPERATURE SENSOR AND GROUND
Connector Terminal
GroundContinuity
PTC relay-2: E62 1 Yes
AWIIA0455ZZ
AB
Continuity
Connector Terminal Connector Terminal
PTC relay-2: E62 1 BCM: M19 52 Yes
AWIIA0468ZZ
Connector Terminal
GroundContinuity
PTC relay-3: E63 1 Yes
AWIIA0455ZZ
AB
Continuity
Connector Terminal Connector Terminal
PTC relay-3: E63 1 BCM: M19 51 Yes
AWIIA0469ZZ

PTC HEATER CONTROL SYSTEM
HAC-49
< COMPONENT DIAGNOSIS >[MANUAL AIR CONDITIONER]
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1. Turn ignition switch OFF.
2. Reconnect BCM connector.
3. Disconnect ambient temperature sensor.
4. Turn ignition switch ON.
5. Check voltage between ambient temperature sensor harness
connector E60 terminal 4 and ground.
Is the inspection result normal
YES >> GO TO 16.
NO >> GO TO 15.
15.CHECK CIRCUIT CONTINUITY BETWEEN AMBIENT TEMPERATURE SENSOR AND BCM CONTROL
UNIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check continuity between ambient temperature sensor harness
connector E60 (A) terminal 4 and BCM harness connector M18
(B) terminal 36.
4. Check continuity between ambient temperature sensor harness
connector E60 (A) terminal 4 and ground.
Is the inspection result normal
YES >> Replace BCM. Refer to XXXX.
NO >> Repair harness or connector.
16.CHECK CONTINUITY OF AMBIENT TEMPERATURE SENSOR GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check continuity between ambient temperature sensor harness
connector E60 (A) terminal 3 and BCM harness connector M18
(B) terminal 35.
Is the inspection result normal?
YES >> GO TO 17.
NO >> Repair harness or connector.
17.CHECK AMBIENT TEMPERATURE SENSOR
Te r m i n a l s
Vo l ta g e
(Approx.) (+) (−)
Connector Terminal
Ground
Ambient temperature sensor:
E6045V
AWIIA0462ZZ
AB
Continuity
Connector Terminal Connector Terminal
Ambient temperature
sensor: E604BCM: M1836Yes
A
GroundContinuity
Connector Terminal
Ambient temperature sensor: E60 4 No
AWIIA0470ZZ
AB
Continuity
Connector Terminal Connector Terminal
Ambient temperature
sensor: E643BCM: M1835Yes
AWIIA0471ZZ

HAC-50
< COMPONENT DIAGNOSIS >[MANUAL AIR CONDITIONER]
PTC HEATER CONTROL SYSTEM
Refer to XX-XX, "*****".
Is the inspection result normal?
YES >> GO TO 18.
NO >> Replace ambient temperature sensor. Refer to XX.
18.CHECK PTC HEATER RELAY-1 POWER SUPPLY CIRCUIT
1. Disconnect PTC heater connector.
2. Reconnect all PTC relays.
3. Start the engine (1,000 RPM minimum).
4. Check voltage between PTC heater harness connector E65 ter-
minal 3 and ground.
Is the inspection result normal?
YES >> GO TO 19.
NO >> Repair harness or connector.
19.CHECK PTC HEATER RELAY-2 POWER SUPPLY CIRCUIT
Check voltage between PTC heater harness connector E65 terminal
2 and ground.
Is the inspection result normal
YES >> GO TO 20.
NO >> Repair harness or connector.
20.CHECK PTC HEATER RELAY-3 POWER SUPPLY CIRCUIT
Check voltage between PTC heater harness connector E65 terminal
1 and ground.
Is the inspection result normal
YES >> Replace PTC heater. Refer to XXXX.
NO >> Repair harness or connector.
PTC HEATER (1500 WATT) : PTC Heater (1500 Watt) Component Inspection
INFOID:0000000001682733
COMPONENT INSPECTION
Blower Relay
Te r m i n a l s
Vol tag e
(Approx.) (+) (−)
Connector Terminal
Ground
PTC heater: E65 3 Battery voltage
AWIIA0472ZZ
Te r m i n a l s
Vol tag e
(Approx.) (+) (−)
Connector Terminal
Ground
PTC heater: E65 2 Battery voltage
AWIIA0474ZZ
Te r m i n a l s
Vol tag e
(Approx.) (+) (−)
Connector Terminal
Ground
PTC heater: E65 1 Battery voltage
AWIIA0476ZZ

PTC HEATER CONTROL SYSTEM
HAC-51
< COMPONENT DIAGNOSIS >[MANUAL AIR CONDITIONER]
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Check continuity between relay terminals 3 and 5.
If NG, replace the blower relay. Refer to XX.
PTC relay
Check continuity between terminal Nos. 3 and 5.
If NG, replace PTC relay. Refer to XX.
Ambient Sensor
After disconnecting ambient sensor connector E60, measure resis-
tance between terminals 3 and 4 at sensor side, using the table
below.
Condition Continuity
12V direct current supply between terminals 1 and 2 Yes
OFF No
SCIA1245E
Condition Continuity
12V direct current supply between terminal Nos. 1 and 2 Yes
No current supply No
SJIA0931E
Temperature °C (°F) Resistance kΩ
−15 (5) 12.73
−10 (14) 9.92
−5 (23) 7.80
0 (32) 6.19
5 (41) 4.95
10 (50) 3.99
15 (59) 3.24
20 (68) 2.65
25 (77) 2.19
30 (86) 1.81
35 (95) 1.51
40 (104) 1.27
45 (113) 1.07
AWIIA0601ZZ

HAC-52
< COMPONENT DIAGNOSIS >[MANUAL AIR CONDITIONER]
PTC HEATER CONTROL SYSTEM
If NG, replace ambient sensor. Refer to XX.

AIR CONDITIONER CONTROL
HAC-53
< ECU DIAGNOSIS >[MANUAL AIR CONDITIONER]
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ECU DIAGNOSIS
AIR CONDITIONER CONTROL
Reference ValueINFOID:0000000001203072
VALUES ON THE DIAGNOSIS TOOL
Display Item List
Monitor item name
“operation or unit”Contents
FAN ON SIG “ON/OFF” Displays “FAN (ON)/FAN (OFF)” status as judged from blower fan motor switch signal.
AIR COND SW “ON/OFF” Displays “COMP (ON)/COMP (OFF)” status as judged from air conditioner switch signal.

HAC-54
< ECU DIAGNOSIS >[MANUAL AIR CONDITIONER]
AIR CONDITIONER CONTROL
Wiring Diagram - Heater Control (without A/C) -
INFOID:0000000001683778
ALIWA0033GB

AIR CONDITIONER CONTROL
HAC-55
< ECU DIAGNOSIS >[MANUAL AIR CONDITIONER]
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ALIIA0139GB

HAC-56
< ECU DIAGNOSIS >[MANUAL AIR CONDITIONER]
AIR CONDITIONER CONTROL
Wiring Diagram - Air Conditioner Control -
INFOID:0000000001203073
ALIWA0034GB

AIR CONDITIONER CONTROL
HAC-57
< ECU DIAGNOSIS >[MANUAL AIR CONDITIONER]
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ALIWA0035GB